No problem, we've got 1422 and 4374 to multiply
1422 × 4374 = 4374 × (1422)
+ 4374 × 2 what gives us 8748
+ 4374 × 20 giving us 87480
+ 4374 × 400 that is equal 1749600
+ 4374 × 1000 that is equal 4374000

= 6219828
